/*
 * Copyright 2003,2004 The Apache Software Foundation
 *
 *  Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 *  Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package cn.taketoday.context.cglib.reflect;

import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;

@SuppressWarnings("all")
public class FastMethod extends FastMember {

  FastMethod(FastClass fc, Method method) {
    super(fc, method, helper(fc, method));
  }

  private static int helper(FastClass fc, Method method) {
    int index = fc.getIndex(method);
    if (index < 0) {
      Class[] types = method.getParameterTypes();
      System.err.println("hash=" + method.getName().hashCode() + " size=" + types.length);
      for (int i = 0; i < types.length; i++) {
        System.err.println("  types[" + i + "]=" + types[i].getName());
      }
      throw new IllegalArgumentException("Cannot find method " + method);
    }
    return index;
  }

  public Class getReturnType() {
    return ((Method) member).getReturnType();
  }

  public Class[] getParameterTypes() {
    return ((Method) member).getParameterTypes();
  }

  public Class[] getExceptionTypes() {
    return ((Method) member).getExceptionTypes();
  }

  public Object invoke(Object obj, Object[] args) throws InvocationTargetException {
    return fc.invoke(index, obj, args);
  }

  public Method getJavaMethod() {
    return (Method) member;
  }
}
